@article{ref1,
title="Typologies of adolescent activity related health behaviours",
journal="Journal of science and medicine in sport",
year="2019",
author="Parker, Kate E. and Salmon, Jo and Brown, Helen L. and Villanueva, Karen and Timperio, Anna",
volume="22",
number="3",
pages="319-323",
abstract="OBJECTIVES: To identify typologies of activity-related behaviours and demographic characteristics of these typologies among Australian adolescents. <br><br>DESIGN: Cross-sectional study of 473 Secondary School students (41.4% boys, mean age 14.95±1.61 years) conducted in 2014-15. <br><br>METHODS: Active travel to school, sport participation, leisure-time sedentary and demographic variables were self-reported in a survey. Duration of sedentary time and moderate-to-vigorous physical activity (mins/day) were accelerometer-derived. Latent class analysis (LCA) was conducted to identify typologies of activity-related health behaviours. One-way ANOVAs and chi-square tests were used to explore differences by demographic characteristics. <br><br>RESULTS: Three typologies were identified: (1) &quot;Physically inactive, highly sedentary&quot; (44%); (2) &quot;Moderately active, high screen-time&quot; (42%); and (3) &quot;Highly active, low sedentary&quot; (14%). Differences between typologies were evident for age, sex, body mass index (BMI), cultural identity, employment status and socioeconomic position (SEP). Those in typology 3 (optimal behaviour pattern) tended to be younger, of higher SEP and lower BMI. <br><br>CONCLUSIONS: This study found that older adolescents have less active, more sedentary profiles than younger adolescents. The findings support the need for targeted interventions to improve adolescent activity-related behaviour engagement.<br><br>Copyright © 2018 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="1440-2440",
doi="10.1016/j.jsams.2018.08.015",
url="http://dx.doi.org/10.1016/j.jsams.2018.08.015"
}